Click on the embed widget button and go to 'Other HTML'
Copy the code from the link at the bottom of this page. The code needs to have no line breaks in it.
Just substitute your own text where I have written - 'Write your text in here'
Change to suit your own needs. The border thickness can be changed at border: 3px - the background color and border color changed by substituting the #color code for the one you want. You can also change text color, font etc.
Code
<script language="JavaScript">document.write('<div style="width: 90%; margin: 10px auto 10px 30px; border: 5px ridge #ffcc00; padding: 10px; background-color: #00cccc;">')</script>Put text in here<script language="JavaScript">document.write('</div>') </script>
Add a colored text box
Code
<script language="JavaScript">document.write('<div style="width: 90%; margin: 10px auto 10px 30px; border: 5px ridge #ffcc00; padding: 10px; background-color: #00cccc;">')</script>Put text in here<script language="JavaScript">document.write('</div>') </script>